add online/offline api

package.json

@@ -20,6 +20,7 @@
     "test:e2e": "jest --config ./test/jest-e2e.json"
   },
   "dependencies": {
+    "@nestjs/axios": "^4.0.0",
     "@nestjs/common": "^10.0.0",
     "@nestjs/config": "^3.2.3",
     "@nestjs/core": "^10.0.0",
@@ -28,6 +29,7 @@
     "@nestjs/typeorm": "^10.0.2",
     "@nestjs/websockets": "^10.3.10",
     "@socket.io/redis-adapter": "^8.3.0",
+    "axios": "^1.9.0",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.1",
     "pg": "^8.12.0",